Container ship · Marshall Islands flag · built 2005

MAUREN: CO₂ emissions 2019–2025

IMO 9306251 EU ETS7 reporting years

CO₂ reported 2025: 8,104 t
Fuel burned: 2,557 t
Distance: 30,543 nm
Time at sea: 3,228 h
Emitted at berth: 7% of total
Share of year under way: 37%
Gross tonnage: 9,957

MAUREN against its type

Built in 2005, it is 3 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 9,957 gross tonnage it is smaller than 92% of the other 3,000 container ships with a recorded tonnage. It is one of 119 container ships here under the Marshall Islands flag, 3.4% of the 3,495 on the register. The same builder is recorded for 160 other vessels here, 23 of them container ships. The reported port of registry changed: St. John's (2019–2023), then Majuro (2024–2025).

Its 8,104 t of CO₂ for 2025 is 50% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 265.3 kg CO₂, 51% below the type median of 545.6 kg. It logged 3,228 hours at sea against a median of 3,155 hours for its type that year. 7.2% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 7 years with reported emissions, the highest was 2022 (13,366 t) and the lowest 2020 (4,355 t). Its efficiency percentile within the type went from 94 in 2021 to 93 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2019–2025

Year	CO₂ (t)	Fuel (t)	Distance (nm)	At sea (h)	At berth (t)	kg CO₂/nm	EEOI	Percentile
2025	8,104	2,557	30,543	3,228	581	265.3	41.7	93
2024	11,377	3,642	39,992	3,827	571	284.5	38.5	89
2023	11,756	3,763	43,591	3,818	445	269.7	38.7	86
2022	13,366	4,268	55,225	4,764	771	242.0	29.8	78
2021	10,890	3,483	40,514	3,837	836	268.8	49.2	94
2020	4,355	1,379	—	1,238	322	333.6	54.3	not ranked
2019	5,770	1,845	—	4,884	482	270.1	103.7	not ranked

Vessel particulars

IMO number: 9306251
Ship type: Container ship
Gross tonnage: 9,957
Length overall: 147.8 m
Beam: 23.4 m
Year built: 2005
Flag state: Marshall Islands per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Antigua and Barbuda. The flag shown is from the newest official source, the EU MRV return for 2025.
Builder: CSC Jinling
Port of registry: Majuro MRV 2025
Technical efficiency (design): EEXI (21.62 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-04-02
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 1,705 of 1,838 qualifying container ships by EEOI, at the 93rd percentile. The dashed line is the type median, 14.2; this vessel reported 41.7.

EEOI divides emissions by transport work, which for this vessel and year was 194,241,611 tonne-miles over 30,543 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 40.4% higher than in 2019, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 28.8% while distance sailed fell 23.6%and CO₂ per nautical mile fell 6.7%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 8,229 t
Methane (CH₄): 0.13 t
Nitrous oxide (N₂O): 0.46 t
Under EU ETS: 6,214 t, 77% of total

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2019–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0).

This page draws on 7 MRV reporting years, an efficiency ranking and 5 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.